JPH0510489Y2 - - Google Patents
Info
- Publication number
- JPH0510489Y2 JPH0510489Y2 JP1986038881U JP3888186U JPH0510489Y2 JP H0510489 Y2 JPH0510489 Y2 JP H0510489Y2 JP 1986038881 U JP1986038881 U JP 1986038881U JP 3888186 U JP3888186 U JP 3888186U JP H0510489 Y2 JPH0510489 Y2 JP H0510489Y2
- Authority
- JP
- Japan
- Prior art keywords
- interlock
- circuit breaker
- switchboard
- lever
- type circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002265 prevention Effects 0.000 claims description 14
- 239000004020 conductor Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Landscapes
- Trip Switchboards (AREA)
Description
【考案の詳細な説明】
Ａ 産業上の利用分野
本考案は、配電盤内に収容する引出形遮断器に
関し、特に、収容時に配電盤に対して引出形遮断
器を固定するためのインタロツク機構を備えた引
出形遮断器の改良に係るものである。[Detailed description of the invention] A. Field of industrial application The present invention relates to a draw-out type circuit breaker housed in a switchboard, and in particular, to a draw-out type circuit breaker that is equipped with an interlock mechanism for fixing the draw-out type circuit breaker to the switchboard when housed. This relates to improvement of draw-out type circuit breakers.
Ｂ 考案の概要
本考案は、電気的な遠隔操作または手動操作に
より遮断部の投入，遮断動作を行う引出形遮断器
において、
引出形遮断器から出没して配電盤と係合するイ
ンタロツクピンを備えたインタロツク機構を設け
ると共に、このインタロツク機構の手動操作部を
設け、遮断部の投入状態に連動してインタロツク
の解除操作を阻止する解除阻止機構を設けると共
に、インタロツクを解除すると手動操作部に連動
して電気的な遠隔投入操作の回路を開くスイツチ
を設け、かつ手動操作又は遠隔操作による引外し
フツクの回動を阻止して投入操作を阻止する投入
阻止機構を設けることにより、
引出形遮断器を配電盤内に確実に固定し、遮断
部や主回路導体部で万一短絡事故が発生して盤内
圧力が上昇しても、引出形遮断器が配電盤から飛
び出すことを阻止することができ、また遮断部が
投入状態でインタロツク機構を解除動作させるこ
とができないようにすると共に、インタロツク解
除状態において遠隔または手動の遮断部の投入操
作を阻止して安全を図ることができると共に、遮
断部投入用ばねの空放勢をなくして機構の疲労を
少なくし、また遠隔投入回路の投入コイルの焼損
を防止することができるようにしたものである。B. Overview of the invention The present invention is a draw-out type circuit breaker that closes and disconnects the circuit breaker by electrical remote control or manual operation, and is equipped with an interlock pin that protrudes and retracts from the draw-out type circuit breaker and engages with the switchboard. In addition to providing an interlock mechanism, a manual operation part of this interlock mechanism is provided, and a release prevention mechanism is provided that prevents the interlock from being released in conjunction with the closed state of the shutoff part, and when the interlock is released, it is linked to the manual operation part. The drawer-type circuit breaker It is securely fixed in the switchboard, and even if a short circuit occurs at the interrupting part or the main circuit conductor and the pressure inside the panel increases, the drawer-type circuit breaker can be prevented from jumping out of the switchboard. It is possible to prevent the interlock mechanism from being released when the cut-off part is in the closed state, and to prevent remote or manual closing operation of the cut-off part when the interlock is released, and to prevent the interlock mechanism from being released when the cut-off part is in the closed state. This eliminates the idling and reduces the fatigue of the mechanism, and also prevents the closing coil of the remote closing circuit from burning out.
Ｃ 従来の技術
従来、電気的な遠隔操作又は手動操作により遮
断部の投入，遮断動作を行う引出形遮断器におい
ては、遮断部や主回路導体部で短絡事故が発生し
て盤内圧力が上昇しても、遮断器が配電盤から飛
び出すことがないように、インタロツクピンが水
平に出没して配電盤と係合するインタロツク機構
が設けられており、このインタロツク機構は手動
操作部の操作により動作させるようになつてい
る。C. Conventional technology Conventionally, in drawer-type circuit breakers in which the interrupting section is closed and disconnected by electrical remote control or manual operation, a short circuit occurs in the interrupting section or the main circuit conductor, resulting in an increase in the pressure inside the panel. In order to prevent the circuit breaker from jumping out from the switchboard even when the circuit breaker is disconnected, an interlock mechanism is provided in which the interlock pin protrudes and retracts horizontally and engages with the switchboard, and this interlock mechanism is activated by operating the manual operation part. It's becoming like that.
Ｄ 考案が解決しようとする問題点
上記従来の引出形遮断器においては、遮断部の
投入状態でインタロツクを解除することができ、
逆に、引出形遮断器が主回路に接続されていない
状態において電気的な遠隔投入操作、または手動
投入操作を行うことができるため、誤操作による
危険を伴うと共に、遮断部の投入用のばねの空放
勢が行われるために、機構の疲労を助長し、また
空投入により投入回路中の投入コイルの焼損事故
が生じるという問題点があつた。本考案は、以上
のような従来の問題点を解決しようとするもので
ある。D Problems to be solved by the invention In the above conventional draw-out type circuit breaker, the interlock can be released when the circuit breaker is in the closed state.
On the other hand, since draw-out type circuit breakers can be electrically closed remotely or manually when they are not connected to the main circuit, there is a risk of erroneous operation, and the closing spring of the circuit breaker is There was a problem in that the empty firing promoted fatigue of the mechanism, and the empty firing could cause a burning out of the closing coil in the closing circuit. The present invention attempts to solve the above-mentioned conventional problems.
Ｅ 問題点を解決するための手段
斯かる目的を達成するための本考案の構成は、
配電盤の外部へ引き出し可能に配電盤内に具えら
れるとともに手動操作又は電気的な遠隔操作によ
り遮断部の投入，遮断を行う引出形遮断器におい
て、一定方向へ移動自在でかつ引出形遮断器より
突出することにより配電盤と係合するインタロツ
クピンの内端部を操作軸を中心として回動自在な
回動レバーの端部に回動自在に連結するとともに
操作軸の端部に手動操作部を設け、遮断部の投
入，遮断状態に対応して一定方向での位置を占め
る連動杆にストツパピンを設ける一方、ストツパ
ピンと係合して遮断部の投入時にのみインタロツ
ク解除の方向への回動レバーの回動を阻止するス
トツパレバーを操作軸に固着して解除阻止機構を
構成し、回動レバーを回動させてインタロツクを
解除したときには前記電気的な遠隔操作のための
回路を開くためのスイツチのヒンジレバーを押す
カム板を操作軸に固着し、かつ手動操作又は遠隔
操作の際に回動させて遮断部を投入させるための
引き外しフツクの回動を一端が阻止するロツク棒
の他端をカム板に回動自在に結合して投入阻止機
構を構成したことを特徴とする。E Means for solving the problem The structure of the present invention to achieve this purpose is as follows:
A drawer-type circuit breaker that is installed inside a switchboard so as to be able to be pulled out to the outside of the switchboard, and that turns on and off by manual operation or electrical remote control, which is movable in a certain direction and protrudes from the drawer-type circuit breaker. Accordingly, the inner end of the interlock pin that engages with the switchboard is rotatably connected to the end of a rotary lever that is rotatable around an operating shaft, and a manual operating section is provided at the end of the operating shaft, A stopper pin is provided on the interlocking rod that occupies a position in a certain direction in response to the closing and shutting states of the shutoff section, while a rotating lever engages with the stopper pin and rotates in the direction of releasing the interlock only when the shutoff section is closed. A release prevention mechanism is constructed by fixing a stopper lever to the operating shaft, and when the rotary lever is rotated to release the interlock, the hinge lever of the switch for opening the circuit for electrical remote control is activated. The pushing cam plate is fixed to the operating shaft, and the other end of the locking rod is attached to the cam plate, and one end of the lock bar prevents the rotation of the tripping hook that is rotated to close the shutoff part during manual or remote operation. It is characterized in that it is rotatably coupled to form a charging prevention mechanism.
Ｆ 作用
本考案の引出形遮断器は、これを配電盤の所定
位置に押し込むことにより主回路に接続される。
そして、インタロツク機構を操作してこれを配電
盤に係合させ、引出形遮断器を所定位置に位置決
めし、配電盤内に固定した後、手動または遠隔操
作により遮断部を投入する。この状態において、
引出形遮断器は外力により配電盤から押し出され
ることがない。そして、遮断部が投入状態になる
と、これに連動して解除阻止機構が動作して遮断
部投入状態におけるインタロツク解除を不可能と
する。引出形遮断器を配電盤から引き出すために
は、手動または遠隔操作で遮断部を遮断状態と
し、次いでインタロツクの手動操作部を操作して
インタロツクを解除しなければならない。このイ
ンタロツク解除状態において、その解除動作に連
動して投入阻止機構が動作し、インタロツク解除
後の遠隔または手動による遮断部の投入操作を不
可能とする。F. Effect The drawer type circuit breaker of the present invention is connected to the main circuit by pushing it into a predetermined position on the switchboard.
Then, the interlock mechanism is operated to engage the switchboard, the drawer-type circuit breaker is positioned at a predetermined position, and after being fixed in the switchboard, the interrupter is turned on manually or by remote control. In this state,
A draw-out type circuit breaker will not be pushed out of the switchboard by external force. When the interrupter is in the closed state, the release prevention mechanism operates in conjunction with this, making it impossible to release the interlock when the interrupter is in the closed state. In order to pull out the drawer-type circuit breaker from the switchboard, the interrupter must be turned off manually or remotely, and then the manual operation section of the interlock must be operated to release the interlock. In this interlock release state, the closing prevention mechanism operates in conjunction with the release operation, making it impossible to remotely or manually close the shut-off portion after the interlock is released.
Ｇ 実施例
第１図乃至第５図に本考案の一実施例を示す。
第１図は遮断器の正面図、第２図は遮断器の側面
図、第３図はインタロツク機構の正面図、第４図
はインタロツク機構の側面図、第５図はインタロ
ツク機構の平面図である。G. Embodiment An embodiment of the present invention is shown in FIGS. 1 to 5.
Figure 1 is a front view of the circuit breaker, Figure 2 is a side view of the circuit breaker, Figure 3 is a front view of the interlock mechanism, Figure 4 is a side view of the interlock mechanism, and Figure 5 is a plan view of the interlock mechanism. be.
第１図乃至第５図において、１は遮断器の台
枠、２は背部に設けられた入力および出力導体
で、導体２は配電盤３の対応電極に接続可能であ
る。上下の導体２，２間には、真空インタラプタ
の如き遮断部４が設けられ、遮断部４内の下部の
可動電極には、碍子５を介して押し上げ棒６およ
び可動電極を固定電極に圧接させるための圧接ば
ね７が設けられている。押し上げ棒６の途上に
は、台枠１に軸支されたレバー８の一端が枢着さ
れている。遮断部４は、特開昭57−95109号公報
にも記載されているように電気的な遠隔操作また
は手動操作により引き外しフツク９を第２図にお
いて反時計方向へ回動させ、予め蓄勢された（図
示しない）投入バネを放勢させて投入することが
でき、投入状態において、押し上げ棒６は上位に
ある。 In FIGS. 1 to 5, 1 is the frame of the circuit breaker, 2 is an input and output conductor provided at the back, and the conductor 2 can be connected to a corresponding electrode of a switchboard 3. A cut-off part 4 such as a vacuum interrupter is provided between the upper and lower conductors 2, and a lower movable electrode in the cut-off part 4 has a push-up rod 6 and a movable electrode pressed against the fixed electrode via an insulator 5. A pressure contact spring 7 is provided for this purpose. One end of a lever 8, which is pivotally supported by the underframe 1, is pivotally attached to the middle of the push-up rod 6. As described in Japanese Patent Application Laid-open No. 57-95109, the cutoff section 4 is preloaded by rotating the tripping hook 9 counterclockwise in FIG. 2 by electric remote control or manual operation. The input spring can be released by releasing the input spring (not shown), and the push-up rod 6 is in the upper position in the input state.
次に、この遮断器のインタロツク機構１０につ
いて説明する。インタロツク機構１０は左右一対
のインタロツクピン１１，１２と、これらインタ
ロツクピン１１，１２の内端部側を連結する回動
レバーとしての連結レバー１３と、この連結レバ
ー１３の中央を軸支する操作軸１４等から成る。
インタロツクピン１１，１２は相互に平行な異な
る直線上に位置するとともに取付け枠１５及び台
枠１に水平移動自在に支持され、ばね１６，１７
より相互に反対方向へ付勢されており、内端部に
は夫々枢ピン１１ａ，１２ａを備え、これらの枢
ピン１１ａ，１２ａを、連結レバー１３の両端部
に設けられた長孔１３ａ，１３ａに移動自在に係
合させて連結レバー１３に枢支されている。操作
軸１４は、取付け枠１５に引出形遮断器の前後方
向に水平に軸承され、第４図のように前端部に
は、インタロツク機構１０の手動操作部であるつ
まみ１８が固着されている。そして、インタロツ
クピン１１，１２は、配電盤３と係合する方向に
常時付勢されているので、このつまみ１８を第１
図において時計方向へ回動させることにより、連
結レバー１３を介してばね１６，１７を圧縮しな
がらインタロツクピン１１，１２を引出形遮断器
内へ引き込み、配電盤の係合孔３ａとの係合を解
くことができる。 Next, the interlock mechanism 10 of this circuit breaker will be explained. The interlock mechanism 10 includes a pair of left and right interlock pins 11 and 12, a connecting lever 13 as a rotating lever that connects the inner end sides of these interlock pins 11 and 12, and a center of this connecting lever 13 that is pivotally supported. It consists of an operating shaft 14, etc.
The interlock pins 11 and 12 are located on different straight lines parallel to each other and are supported by the mounting frame 15 and the underframe 1 so as to be horizontally movable, and are supported by springs 16 and 17.
The inner ends thereof are provided with pivot pins 11a and 12a, respectively, and these pivot pins 11a and 12a are inserted into elongated holes 13a and 13a provided at both ends of the connecting lever 13. The connecting lever 13 is pivotably engaged with the connecting lever 13 so as to be movably engaged with the connecting lever 13. The operating shaft 14 is horizontally supported by a mounting frame 15 in the front-rear direction of the drawer-type circuit breaker, and a knob 18, which is a manual operating section of the interlock mechanism 10, is fixed to the front end as shown in FIG. Since the interlock pins 11 and 12 are always biased in the direction in which they engage with the switchboard 3, the knob 18 is
By rotating clockwise in the figure, the interlock pins 11 and 12 are pulled into the drawer-type circuit breaker while compressing the springs 16 and 17 via the connection lever 13, and are engaged with the engagement hole 3a of the switchboard. can be solved.
次に、インタロツクの解除阻止機構１９につい
て説明する。解除阻止機構１９は、レバー８の回
動に連動して昇降する連動杆としての昇降杆２０
と、それの上端部に植設されたストツパピン２１
と、このストツパピン２１に当接可能に操作軸１
４に固着されたストツパレバー２２とから成る。
昇降杆２０は、取付け部材２３を介して台枠１に
垂直昇降自在に取付けられ、上端部は操作軸１４
の近傍に到つている。ストツパピン２１は、昇降
杆２０が下位に在るときにストツパレバー２２に
当接してそれの第３図において時計方向の回動を
阻止し、インタロツク解除操作を阻止する。従つ
て、遮断部４の投入状態におけるインタロツクの
解除が阻止されることになる。 Next, the interlock release prevention mechanism 19 will be explained. The release prevention mechanism 19 includes a lifting rod 20 as an interlocking rod that moves up and down in conjunction with the rotation of the lever 8.
and a stopper pin 21 implanted at its upper end.
The operating shaft 1 can be brought into contact with this stopper pin 21.
4 and a stop lever 22 fixed to the stopper lever 22.
The lifting rod 20 is attached to the underframe 1 via a mounting member 23 so as to be able to move up and down vertically, and its upper end is attached to the operating shaft 14.
It has reached the vicinity of . The stopper pin 21 comes into contact with the stopper lever 22 when the lifting rod 20 is in the lower position, and prevents the stopper lever 22 from rotating clockwise in FIG. 3, thereby preventing the interlock release operation. Therefore, the interlock is prevented from being released when the shutoff section 4 is in the closed state.
次に、遠隔による投入操作を阻止するための投
入阻止機構としてのスイツチ２４について説明す
る。この引出形遮断器は、遮断部４を遠隔地から
投入操作するための回路（図示せず）を備えてい
る。そして、スイツチ２４は、この回路中に介設
され、インタロツク機構１０がインタロツク位置
にないときには回路を開放して電気的な投入操作
ができないようにするものである。即ち、図示の
実施例において、スイツチ２４はリミツトスイツ
チで、操作軸１４に固着されたカム板２５の近傍
に位置して取付け枠１５に固着され、インタロツ
ク機構１０の操作時に、カム板２５の回動途上に
おいてこれに押圧されて内部接点を開くヒンジレ
バー２４ａを備えている。 Next, the switch 24, which serves as a closing mechanism for preventing a remote closing operation, will be explained. This drawer-type circuit breaker includes a circuit (not shown) for closing the circuit breaker 4 from a remote location. The switch 24 is interposed in this circuit, and opens the circuit when the interlock mechanism 10 is not in the interlock position, so that no electrical closing operation can be performed. That is, in the illustrated embodiment, the switch 24 is a limit switch, which is located near the cam plate 25 fixed to the operation shaft 14 and fixed to the mounting frame 15, and prevents the rotation of the cam plate 25 when the interlock mechanism 10 is operated. A hinge lever 24a is provided which opens an internal contact when pressed on the way.
この引出形遮断器はまた、蓄勢されたバネの放
勢を行なわせて投入させる引き外しフツク９と、
インタロツク状態にないときに、この引き外しフ
ツク９を回動させないようにして投入操作を阻止
するための投入阻止機構２６とを備えている。こ
の投入阻止機構２６は、操作軸１４に固着された
カム板２５と、これに連動して昇降自在なロツク
棒２７とから成る。ロツク棒２７は、台枠１に固
定された取付け部材２８に垂直方向に昇降自在に
支持され、上端部には、長孔２７ａを備え、この
長孔２７ａに、カム板２５上の枢ピン２５ａを移
動自在に係合させてカム板２５に枢着され、下端
は、引き外しフツク９の近傍に位置し、それが下
位に在るときに引き外しフツク９に当接して引き
外しフツク９の回動を阻止し、上位に在るときに
は、引き外しフツク９の回動を拘束しないように
なつている。 This drawer-type circuit breaker also includes a trip hook 9 that releases the stored spring force and closes the spring.
A closing mechanism 26 is provided to prevent the detaching hook 9 from rotating and to prevent the loading operation when the interlock state is not established. The closing mechanism 26 is composed of a cam plate 25 fixed to the operating shaft 14 and a lock rod 27 that can be moved up and down in conjunction with the cam plate 25. The lock rod 27 is vertically supported by a mounting member 28 fixed to the underframe 1 so as to be vertically movable, and has a long hole 27a at its upper end. is pivotally connected to the cam plate 25 by movably engaging the cam plate 25, and its lower end is located near the tripping hook 9, and when it is in the lower position, it comes into contact with the tripping hook 9 and causing the tripping hook 9 to move. Rotation is prevented, and the rotation of the detachable hook 9 is not restricted when it is in the upper position.
カム板２５には、ピン孔２５ｂが形成されてお
り、支持枠１５には、このピン孔２５ｂに落ち込
み可能な係止ピン２９が取付けられている。この
係止ピン２９は、つまみ１８に隣接して前後方向
に移動自在に取付けられ、ばね３０により常時先
端がカム板２５に摺接するように付勢されると共
に、カム板２５の第３図における時計方向への回
動の終端付近においてピン孔２５ｂに落ち込み可
能に配設されており、また係止ピン２９の前方端
部には取つ手２９ａを備えている。従つて、ピン
２９は、つまみ１８が第３図において時計方向へ
回動され、インタロツクピン１１，１２がばね１
６，１７に抗して内方へ引き込まれた状態でピン
孔２５ｂに落ち込み、操作軸１４を固定して非ロ
ツク状態を保持する。そして、ピン２９が前方へ
引き出されてカム板２５との係合が外れたとき
に、ばね１６，１７の力でインタロツクピン１
１，１２が側方へ突出し、配電盤３と係合するよ
うになつている。 A pin hole 25b is formed in the cam plate 25, and a locking pin 29 that can fall into the pin hole 25b is attached to the support frame 15. This locking pin 29 is attached adjacent to the knob 18 so as to be freely movable in the front and back direction, and is urged by a spring 30 so that its tip always comes into sliding contact with the cam plate 25. It is arranged so that it can fall into the pin hole 25b near the end of rotation in the clockwise direction, and the front end of the locking pin 29 is provided with a handle 29a. Therefore, when the knob 18 is rotated clockwise in FIG. 3, the pin 29 is rotated clockwise in FIG.
6, 17 and falls into the pin hole 25b, fixing the operating shaft 14 and maintaining the unlocked state. When the pin 29 is pulled forward and disengaged from the cam plate 25, the interlock pin 1 is pulled out by the force of the springs 16 and 17.
1 and 12 protrude laterally to engage with the switchboard 3.
以上のように構成された遮断器の動作を説明す
る。今、引出形遮断器が引出状態にあつて、遮断
部４は遮断状態にあり、従つて押し上げ棒６が下
位にあり、レバー８を介して押し上げ棒６に連動
する昇降杆２０は上位にあり、係止ピン２９がカ
ム板２５のピン孔２５ｂに係合し、インタロツク
ピン１１，１２が非ロツク位置に保持されている
ものとする。この状態で引出形遮断器を配電盤３
の所定位置に押し込むと、導体２，２が主回路に
接続される。この状態でピン２９を前方に引つ張
つてカム板２５を解放すると、第３図に実線で示
すように、ばね１６，１７の力でインタロツクピ
ン１１，１２が両側へ突出し、配電盤３と係合し
てインタロツクされると共に、引出形遮断器が所
定位置に位置決めされる。その後、遠隔操作ある
いは手動操作により遮断部４を投入する。一方、
遮断部４が投入されると、押し上げ棒６が上昇し
てレバー８が回動し、これに連動して昇降杆２０
が下降し、第２，４図の破線で示す位置に来て、
ストツパピン２１がストツパレバー２２の回動
（第３図において時計方向）を阻止するので、つ
まみ１８を回動させてインタロツクピン１１，１
２を引き込むことができなくなる。即ち、遮断部
４の投入状態ではインタロツク解除のための操作
が阻止されることとなる。引出形遮断器を配電盤
３から引き出すためには、手動操作または遠隔操
作で遮断部４を遮断状態とし、次いで手動操作部
であるつまみ１８を回動させてインタロツクを解
除しなければならない。遮断部４が遮断状態にあ
るときは昇降杆２０が上位にあり、つまみ１８の
回動が可能となる。このつまみ１８の回動途上に
おいて、カム板２５がスイツチ２４のヒンジレバ
ー２４ａを押し、遠隔投入の回路が開かれると共
に、ロツク棒２７が下降してロツク棒２７の下端
が引き外しフツク９に近接し、手動又は遠隔で引
き外しフツク９を回動させることによる投入操作
（第４図において反時計方向への回動）を阻止す
る。従つて、引出形遮断器が引出状態にあるとき
の遠隔または手動による遮断部４の投入操作が不
可能となる。 The operation of the circuit breaker configured as above will be explained. Now, the drawer-type circuit breaker is in the drawn state, the interrupting part 4 is in the cutoff state, the push-up bar 6 is in the lower position, and the lifting rod 20 that is linked to the push-up bar 6 via the lever 8 is in the upper position. It is assumed that the locking pin 29 is engaged with the pin hole 25b of the cam plate 25, and the interlock pins 11 and 12 are held in the unlocked position. In this state, connect the drawer type circuit breaker to the power distribution board 3.
When pushed into place, the conductors 2, 2 are connected to the main circuit. When the cam plate 25 is released by pulling the pin 29 forward in this state, the interlock pins 11 and 12 protrude to both sides due to the force of the springs 16 and 17, as shown by the solid line in FIG. When engaged and interlocked, the drawer circuit breaker is positioned in position. Thereafter, the shutoff section 4 is turned on by remote or manual operation. on the other hand,
When the shut-off part 4 is turned on, the push-up rod 6 rises and the lever 8 rotates, and in conjunction with this, the lifting rod 20
descends and comes to the position shown by the broken line in Figures 2 and 4,
Since the stopper pin 21 prevents the rotation of the stopper lever 22 (clockwise in FIG. 3), the knob 18 is rotated and the interlock pins 11, 1 are
2 cannot be drawn in. That is, when the cutoff section 4 is in the closed state, the operation for canceling the interlock is blocked. In order to pull out the drawer-type circuit breaker from the switchboard 3, the interrupter 4 must be brought into the disconnected state by manual or remote control, and then the interlock must be released by rotating the knob 18, which is a manual operation part. When the cutoff section 4 is in the cutoff state, the lifting rod 20 is in the upper position, and the knob 18 can be rotated. While the knob 18 is being rotated, the cam plate 25 pushes the hinge lever 24a of the switch 24, opening the remote closing circuit, and the locking rod 27 is lowered to bring the lower end of the locking rod 27 close to the pull-out hook 9. This prevents the closing operation by rotating the release hook 9 manually or remotely (counterclockwise rotation in FIG. 4). Therefore, when the drawer-type circuit breaker is in the drawn-out state, it is impossible to remotely or manually close the interrupter 4.
Ｈ 考案の効果
以上のように、本考案においては、配電盤の外
部へ引き出し可能に配電盤内に具えられるととも
に手動操作又は電気的な遠隔操作により遮断部の
投入，遮断を行う引出形遮断器において、一定方
向へ移動自在でかつ引出形遮断器より突出するこ
とにより配電盤と係合するインタロツクピンの内
端部を操作軸を中心として回動自在な回動レバー
の端部に回動自在に連結するとともに操作軸の端
部に手動操作部を設け、遮断部の投入，遮断状態
に対応して一定方向での位置を占める連動杆にス
トツパピンを設ける一方、ストツパピンと係合し
て遮断部の投入時にのみインタロツク解除の方向
への回動レバーの回動を阻止するストツパレバー
を操作軸に固着して解除阻止機構を構成し、回動
レバーを回動させてインタロツクを解除したとき
には前記電気的な遠隔操作のための回路を開くた
めのスイツチのヒンジレバーを押すカム板を操作
軸に固着し、かつ手動操作又は遠隔操作の際に回
動させて遮断部を投入させるための引き外しフツ
クの回動を一端が阻止するロツク棒の他端をカム
板に回動自在に結合して投入阻止機構を構成した
ため、インタロツク機構により引出形遮断器を配
電盤内に確実に固定し、遮断部や主回路導体部で
万一短絡事故が発生して盤内圧力が上昇しても、
引出形遮断器が配電盤から飛び出すことを阻止す
ることができ、また解除阻止機構により遮断部投
入状態でインタロツク機構を解除動作させること
ができないようにして遮断部投入状態での引出形
遮断器の引き出しを確実に阻止すると共に、投入
阻止機構により、インタロツク解除状態において
遠隔及び手動の遮断部の投入操作を阻止して操作
者の安全を図ることができると共に、遮断部の投
入用ばねの空放勢をなくして機構の疲労を少なく
し、また遠隔投入回路の投入コイルの焼損を防止
することができるという効果を奏する。H. Effects of the invention As described above, the present invention provides a draw-out type circuit breaker that is installed inside a switchboard so as to be able to be pulled out to the outside of the switchboard, and whose cut-off section is turned on and off by manual operation or electrical remote control. The inner end of the interlock pin, which is movable in a certain direction and engages with the switchboard by protruding from the drawer-type circuit breaker, is rotatably connected to the end of the rotary lever, which is rotatable around the operating shaft. At the same time, a manual operation part is provided at the end of the operating shaft, and a stopper pin is provided on the interlocking rod that occupies a position in a certain direction corresponding to the closing/cutting state of the cutoff part, and a stopper pin is provided on the interlocking rod that engages with the stopper pin to close the cutoff part. A release prevention mechanism is constructed by fixing a stopper lever to the operating shaft, which prevents the rotation of the rotation lever in the direction of releasing the interlock only when the rotation lever is rotated to release the interlock. A cam plate that presses the hinge lever of a switch to open a circuit for operation is fixed to the operating shaft, and a detachable hook is rotated to close the shutoff part during manual or remote operation. One end of the locking rod blocks the closing part, and the other end of the locking rod is rotatably connected to the cam plate to form the closing blocking mechanism.The interlock mechanism securely fixes the draw-out type circuit breaker in the switchboard, and prevents the disconnecting part or main circuit conductor from closing. Even if a short-circuit accident occurs in the section and the pressure inside the panel increases,
The drawer-type circuit breaker can be prevented from jumping out from the switchboard, and the release prevention mechanism prevents the interlock mechanism from being released when the breaker is closed, thereby preventing the drawer-type circuit breaker from being pulled out when the breaker is closed. In addition, the closing prevention mechanism prevents remote and manual closing operations of the shut-off section in the state where the interlock is released, thereby ensuring the safety of the operator. This has the effect of eliminating fatigue of the mechanism and preventing burnout of the closing coil of the remote closing circuit.
第１図乃至第５図は本考案の一実施例を示すも
ので、第１図は遮断器の正面図、第２図は遮断器
の側面図、第３図はインタロツク機構の正面図、
第４図はインタロツク機構の側面図、第５図はイ
ンタロツク機構の平面図である。
３……配電盤、４……遮断部、９……引き外し
フツク、１０……インタロツク機構、１１，１２
……インタロツクピン、１３……連結レバー、１
４……操作軸、１８……つまみ（手動操作部）、
１９……解除阻止機構、２０……昇降部、２１…
…ストツパピン、２２……ストツパレバー、２４
……リミツトスイツチ、２４ａ……ヒンジレバ
ー、２５……カム板、２６……投入阻止機構、２
７……ロツク棒。
Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a front view of the circuit breaker, Figure 2 is a side view of the circuit breaker, Figure 3 is a front view of the interlock mechanism,
FIG. 4 is a side view of the interlock mechanism, and FIG. 5 is a plan view of the interlock mechanism. 3... Switchboard, 4... Shutoff section, 9... Tripping hook, 10... Interlock mechanism, 11, 12
...Interlock pin, 13...Connection lever, 1
4...Operation axis, 18...Knob (manual operation section),
19...Release prevention mechanism, 20...Elevating part, 21...
...Stopper pin, 22...Stopper lever, 24
... Limit switch, 24a ... Hinge lever, 25 ... Cam plate, 26 ... Closing prevention mechanism, 2
7...Lock stick.
Claims (1)
られるとともに手動操作又は電気的な遠隔操作に
より遮断部の投入，遮断を行う引出形遮断器にお
いて、 一定方向へ移動自在でかつ引出形遮断器より突
出することにより配電盤と係合するインタロツク
ピンの内端部を操作軸を中心として回動自在な回
動レバーの端部に回動自在に連結するとともに操
作軸の端部に手動操作部を設け、遮断部の投入，
遮断状態に対応して一定方向での位置を占める連
動杆にストツパピンを設ける一方、ストツパピン
と係合して遮断部の投入時にのみインタロツク解
除の方向への回動レバーの回動を阻止するストツ
パレバーを操作軸に固着して解除阻止機構を構成
し、回動レバーを回動させてインタロツクを解除
したときには前記電気的な遠隔操作のための回路
を開くためのスイツチのヒンジレバーを押すカム
板を操作軸に固着し、かつ手動操作又は遠隔操作
の際に回動させて遮断部を投入させるための引き
外しフツクの回動を一端が阻止するロツク棒の他
端をカム板に回動自在に結合して投入阻止機構を
構成したことを特徴とする引出形遮断器。[Scope of Claim for Utility Model Registration] A drawer-type circuit breaker that is installed inside a switchboard so that it can be pulled out to the outside of the switchboard, and that can be turned on and off by manual or electrical remote control, and is movable in a certain direction. The inner end of the interlock pin, which protrudes from the drawer-type circuit breaker and engages with the switchboard, is rotatably connected to the end of a rotary lever that is rotatable about the operating shaft, and the end of the operating shaft. A manual operation section is installed in the
A stopper pin is provided on the interlocking rod that occupies a position in a certain direction in response to the cutoff state, and a stopper lever is provided that engages with the stopper pin and prevents the rotary lever from rotating in the direction of releasing the interlock only when the cutoff part is closed. A cam plate is fixed to the operation shaft to form a release prevention mechanism, and when the rotary lever is rotated to release the interlock, a cam plate is operated that presses the hinge lever of the switch to open the circuit for electrical remote control. The other end of a locking rod that is fixed to the shaft and whose one end prevents the rotation of the tripping hook that is rotated to close the shutoff part during manual or remote operation is rotatably connected to the cam plate. A draw-out type circuit breaker comprising a closing prevention mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986038881U JPH0510489Y2 (en) | 1986-03-17 | 1986-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986038881U JPH0510489Y2 (en) | 1986-03-17 | 1986-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62152610U JPS62152610U (en) | 1987-09-28 |
| JPH0510489Y2 true JPH0510489Y2 (en) | 1993-03-15 |
Family
ID=30851540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986038881U Expired - Lifetime JPH0510489Y2 (en) | 1986-03-17 | 1986-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0510489Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1468479B1 (en) * | 2001-12-28 | 2017-07-19 | ABB Schweiz AG | A medium voltage integrated switchgear |
| KR101031965B1 (en) * | 2009-06-25 | 2011-04-29 | 엘에스산전 주식회사 | Device for preventiong withdrawing or inserting in circuit breaker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60204204A (en) * | 1984-03-28 | 1985-10-15 | 富士電機株式会社 | Interlock unit for drawer type switching device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153509U (en) * | 1982-04-07 | 1983-10-14 | 株式会社明電舎 | Locking device for drawer shapes and disconnectors |
-
1986
- 1986-03-17 JP JP1986038881U patent/JPH0510489Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60204204A (en) * | 1984-03-28 | 1985-10-15 | 富士電機株式会社 | Interlock unit for drawer type switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62152610U (en) | 1987-09-28 |
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